Preparation from ammonia and sulfuric acid or sulfur trioxide [2013‑01]

C01C 1/244

. .

Preparation by double decomposition of ammonium salts with sulfates [2013‑01]

C01C 1/245

. .

Preparation from compounds containing nitrogen and sulfur [2013‑01]

C01C 1/246

. . .

from sulfur-containing ammonium compounds [2013‑01]

C01C 1/247

. . . .

by oxidation with free oxygen [2013‑01]

C01C 1/248

. .

Preventing coalescing or controlling form or size of the crystals [2013‑01]

C01C 1/249

. .

Deacidifying

{

or drying

}

the crystals [2013‑01]

C01C 1/26

.

Carbonates or bicarbonates of ammonium [2013‑01]

C01C 1/28

.

Methods of preparing ammonium salts in general [2013‑01]

NOTE

This group does not cover ammonium salts of complex acids (other than complex cyanides) containing a metal in the anion, which are covered by the relevant groups of subclasses C01D to C01G, according to the metal.

Salts of polybasic acids with ammonium and a metal as cations are classified as though the ammonium were hydrogen.